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Lihlahisoa

Propylene Glycol (PG) 99.5%, 99.9% USP Kereiti / CAS No.: 57-55-6

Tlhaloso e Khutšoanyane:

Propylene glycol (Lebitso la IUPAC: propane-1,2-diol) ke mokelikeli o hlakileng, o se nang 'mala, o batlang o se na monko empa o na le tatso e monate e fokolang. Mokhoa oa eona oa lik'hemik'hale ke CH3CH(OH)CH2OH. E na le lihlopha tse peli tsa joala, e khethoa e le diol. E kopane le mefuta e mengata e fapaneng ea solvents, ho kenyelletsa metsi, acetone, le chloroform. Ka kakaretso, li-glycols ha li halefise ebile li na le maemo a tlaase haholo.


Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Tlhaloso ea Sehlahisoa

E hlahisoa ka tekanyo e kholo haholo-holo bakeng sa tlhahiso ea li-polymers. European Union, e na le E-nomoro E1520 bakeng sa lits'ebetso tsa lijo. Bakeng sa litlolo le pharmacology, palo ke E490. Propylene glycol e boetse e teng ho propylene glycol alginate, e tsejoang e le E405. Propylene glycol ke motsoako oo e leng GRAS (ka kakaretso e amoheloang e sireletsehile) ke Tsamaiso ea Lijo le Lithethefatsi ea US tlas'a 21 CFR x184.1666, 'me e boetse e amoheloa ke FDA bakeng sa tšebeliso e itseng e le motsoako oa lijo tse sa tobang. Propylene glycol e amohetsoe mme e sebelisoa e le koloi bakeng sa litokisetso tsa meriana ea li-topical, tsa molomo, le tse ling tse kenang methapong US le Europe.

Thepa

Foromo C3H8O2
CAS NO 57-55-6
ponahalo mokelikeli o se nang 'mala, o bonaletsang, oa viscous
tekano 1.0±0.1 g/cm3
ntlha e belang 184.8±8.0 °C ho 760 mmHg
flash(ing) ntlha 107.2±0.0 °C
phutheloana moropa/ ISO Tanka
Polokelo Boloka sebakeng se pholileng, se nang le moea o pholileng, se omileng, se arohaneng le mohloli oa mollo, lipalangoang tsa ho palamisa le ho laolla li lokela ho bolokoa ho latela litokisetso tsa lik'hemik'hale tse chefo tse tukang.

* Liparamente ke tsa litšupiso feela. Bakeng sa lintlha, sheba COA

Kopo

E atisa ho sebelisoa e le excipient litokisetsong tse ngata tsa meriana ho eketsa solubility le botsitso ba lithethefatsi.

Meetsong ea meriana, MEA e sebelisoa haholo-holo bakeng sa ho thibela kapa ho lokisa li-emulsion. MEA e ka sebelisoa e le pH regulator ho litlolo.

Ke injectable sclerosant e le khetho ea kalafo ea matšoao a li-hemorrhoids. 2-5 ml ea ethanolamine oleate e ka kenngoa ka har'a mucosa ka holim'a li-hemorrhoids ho etsa hore ho be le seso le ho tiisa mucosal ka tsela eo ho thibela li-hemorrhoids hore li theohe ka ntle ho kanale.

Hape ke motsoako oa ho hloekisa mokelikeli oa lifensetere tsa koloi.

Molemo

Ka linako tse ling motsoako o bitsoa (alpha) α-propylene glycol ho e khetholla ho isomer propane-1,3-diol, e tsejoang e le (beta) β-propylene glycol. Propylene glycol ke chiral. Mekhoa ea khoebo hangata e sebelisa racemate. S-isomer e hlahisoa ke litsela tsa biotechnological.

1,2-Propanediol ke thepa e tala ea bohlokoa bakeng sa polyester e sa tsitsang, epoxy resin, polyurethane resin, plasticizer, le surfactant. Chelete e sebelisoang sebakeng sena e etsa hoo e ka bang 45% ea kakaretso ea tšebeliso ea propylene glycol. E sebelisoa haholo ka ho roala holim'a metsi le li-plastiki tse matlafalitsoeng. 1,2-propanediol e na le viscosity e ntle le hygroscopicity, 'me e sebelisoa haholo e le hygroscopic agent, antifreeze agent, lubricant le solvent indastering ea lijo, ea meriana le ea litlolo. Ka indasteri ea lijo, 1,2-propanediol e sebetsana le mafura a mafura ho etsa propylene glycol fatty acid esters, e sebelisoang haholo-holo e le li-emulsifiers tsa lijo; 1,2-propanediol ke motsoako o babatsehang bakeng sa li-seasoning le li-pigments. Ka lebaka la chefo ea eona e tlase, e sebelisoa e le mokelikeli oa linoko le 'mala oa lijo indastering ea lijo. 1,,2-Propanediol e atisa ho sebelisoa e le solvent, softener le excipient ha ho etsoa litlolo tse sa tšoaneng le mafura indastering ea meriana, 'me e le motsoako oa ho kopanya mahlahana, li-preservatives, mafura, livithamine, penicillin, joalo-joalo. indasteri . Hobane propylene glycol e na le miscibility e ntle le linoko tse fapa-fapaneng, e boetse e sebelisoa e le solvent le softener bakeng sa litlolo. 1,2-Propanediol e boetse e sebelisoa e le moisturizer ea koae, moemeli oa antifungal, lisebelisoa tsa ho lokisa lijo le solvent bakeng sa li-inks tse tšoaeang lijo. Litharollo tsa metsi tsa 1,2-propanediol ke li-antifreeze agents tse sebetsang hantle. E boetse e sebelisoa e le moemeli oa ho kolobisa koae, antifungal agent, preservative e butsoang litholoana, antifreeze le sejari sa mocheso, joalo-joalo.


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